You got me thinking of the pressure loss of the 9100 vs 9500, with 9500 having less pressure loss but meter accuracy of 1.5gpm and >, which is not good for residential apps.You mentioned the Fleck 7000 and how it has higher flow rates vs 9100 with less pressure loss. I plan to split the irrigation zones, and was thinking maybe I could get the 7000 and manually regenerate it before I would run the various zones. I found alot of positive posts you made about the 7000. I was hoping you could answer a few questions.The 7000sxt spec sheet has the meter accuracy as 2-40gpm. Is that correct? It is greater than the 9500 meter accuracy, which was not be good for the residential apps? On the spec sheet it has 27.7 & 28.4 gpm at 50 spi, but does not list psi loss? Would you know where I can find the gpm psi loss info? With the 1.25" distributor tube & 4.5cu/ft resin, would the 7000sxt would be good for home use and partial zones irrigation use? I appreciate your reply.Thank you.